Plumbing / Toilet Flushers
Sloan Royal 140-1.6-RB-WB-10-3/4-LDIM Manual Flushometer
Quick guide for the Sloan Royal 140-1.6-RB-WB-10-3/4-LDIM manual flushometer. Includes technical specifications, operating pressure requirements, and rough-in installation dimensions.
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Click an image to enlargeQuick guide from the manual
This document provides technical specifications and rough-in dimensions for the Sloan Royal 140-1.6-RB-WB-10-3/4-LDIM manual flushometer. It is intended for planning installation and verifying compatibility with existing plumbing fixtures.
Product Overview
The Royal 140 is a concealed manual water closet flushometer. Key features include:
- Flush Volume: 1.6 gpf (6.0 lpf).
- Valve Type: Diaphragm valve with PERMEX synthetic rubber diaphragm and dual filtered fixed bypass.
- Handle: ADA-compliant, non-hold-open handle to prevent excessive water usage.
- Technology: CID technology for flush accuracy and water efficiency.
- Durability: High copper, low zinc brass castings for dezincification resistance and a vandal-resistant stop cap.
Specifications
- Finish: Rough Brass (RB).
- Fixture Connection: Rear Spud.
- Supply Pipe: 1 inch (25 mm).
- Spud Coupling: 1.5 inch (38 mm).
- L Dimension: 10.75 inches (273 mm).
- Rough-in Dimension: 14.5 inches (368 mm).
Installation Rough-in
The unit requires specific wall openings for installation. Please note that the WB-1-A wall box is not included with this product and must be ordered separately. Refer to the rough-in diagram for the exact positioning of the supply pipe and fixture centerline.
Operating Requirements
The valve requires a flowing water pressure of 15-80 psi (103-552 kPa). Please note that specific fixtures may require a higher minimum flowing pressure; always consult the fixture manufacturer's requirements.
Practical help
Common problems
Wall box missing
The WB-1-A wall box is not included with this unit and must be ordered separately.
Insufficient flush pressure
Ensure water supply pressure is between 15-80 psi (103-552 kPa). Some fixtures may require higher minimum flowing pressure.
Before use
- Verify water supply pressure is within 15-80 psi.
- Confirm fixture type is a water closet with a rear spud connection.
- Ensure the required WB-1-A wall box is available if installing in a wall box configuration.
Images and diagrams
- The rough-in diagram illustrates the required wall openings (1.5 inch for spud, 2 inch for wall box) and the centerline positioning for the supply pipe and fixture.
Model compatibility
- Compatible with water closets featuring a rear spud connection.
- Requires WB-1-A wall box for concealed installations (sold separately).
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.